--- title: "11C Scientific Calculator - Reviews, Revenue and Downloads in United States | Apple App Store" description: "11C Scientific Calculator is the most accurate and precise emulator of the HP 11C RPN scientific programmable calculator available for iPhone and iPod touch. It uses the same RPN (Reverse Polish Nota" --- # 11C Scientific Calculator — United States > HP 11C emulator ![11C Scientific Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/de/80/78/de807887-425d-45cf-a642-a5ffaa008d13/AppIcon-2-0-0-1x_U007emarketing-0-0-0-7-85-220.png/434x0w.png) **Developer:** [Vicinno Soft](https://apptail.io/developer/vicinno-soft-vCo) (United States) **Category:** Utilities **Rating:** 4.2/5 (297 ratings) **Price:** Free **Bundle ID:** com.vicinno.11cCalc **Store:** Apple App Store **Country:** United States **Version:** 1.73 (released 2020-04-17) **Original Release:** 2012-06-04 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id530593018) **AppTail Page:** [https://apptail.io/app/11c-scientific-calculator-BzWb/united-states](https://apptail.io/app/11c-scientific-calculator-BzWb/united-states) ## 11C Scientific Calculator Description 11C Scientific Calculator is the most accurate and precise emulator of the HP 11C RPN scientific programmable calculator available for iPhone and iPod touch. It uses the same RPN (Reverse Polish Notation) entry system and supports the same mathematical functions as the HP 11C Scientific Calculator. **** Features **** • Hyperbolic and inverse hyperbolic trig functions. • Probability (combinations and permutations). • Factorial, absolute, integer & fractional. • % change, and % of total. • Random number generator. • Index register for indirect operations. • User mode to run program labels. • Cumulative statistical analysis & Linear regression. • Hour minute second conversion. • Polar, rectangular conversion. • RPN entry. • Programmable. • In-app manual, quick start help, and in-app support access. • Option to disable/enable key click feedback sound; and • Easily switch between US and EU data format/comma or period as decimal point • Automatically save/restore settings during app close/start. • Click menu key to see more options. • More … *** What People Say About It *** "Miss your old HP 11C RPN scientific calculator? Then give this utility app a try. It mimics the look and feel of that classic number cruncher in every way possible. It uses the same Reverse Polish Notation entry system and supports the same mathematical functions. There’s even an in-app manual that features tutorial videos in case you’ve lost your touch." ---AppAdvice.com "This app supports complex numbers, intense calculations, matrix operations, and many other features that I don't have room to list. " ---AppGratis.com **** Support **** Feel free to contact us if you need any support by visiting www.vicinno.com or simply email us at support@vicinno.com. **** Stay tuned **** Like us: www.facebook.com/vicinno Follow us: www.twitter.com/vicinno ## 11C Scientific Calculator Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/e1/bc/0c/e1bc0cb2-dae8-e4c2-4c9f-58588d769d64/mzl.cdaibfci.png/640x960.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/e5/38/fc/e538fc93-a607-cfd2-c3a3-c29c788f054c/mzl.hbkgxkan.png/960x640.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/95/f9/73/95f973d5-3d48-01bf-07d1-e4881f995d68/mzl.roarxvsd.png/640x960.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/46/5c/e4/465ce4e2-6905-ddee-cfd8-6a9b40fb3350/mzl.sjroqskc.png/640x960.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/64/6a/fb/646afbe1-c58b-f460-87d3-7f13eac034e7/mzl.dbryvxog.png/640x960.png) ## 11C Scientific Calculator Rating Breakdown in United States - 5 stars: 210 (71%) - 4 stars: 31 (10%) - 3 stars: 9 (3%) - 2 stars: 7 (2%) - 1 stars: 40 (13%) ## 11C Scientific Calculator Reviews in United States ### *---- "Blank, White Screen" I went to the menu to turn on auto rotate and when I tried to go back - Blank, White Screen Now I'm out 6 bucks - ripoff -- EspUSA, 2024-08-18 ### ***** "I think in reverse Polish notation" What’s not to like? -- dWolf3, 2024-06-26 ### ***** "i love this app" I purchased this HP 15C calculator app becauee I've used the original HP 11C, since 26th September 1986. It is fun to use on my iPad. -- AtteanCanoe, 2024-03-12 ### ***** "HP 11c Calculator" Best scientific and engineering calculator ever made. -- Tox_Doc, 2024-01-19 ### ***** "very happy to get a New HP11c !" My 1981 is still working like new, but sure doesn’t look it. This app makes my iPhone and iPadmini just as good as the real thing. For several weeks I did all kinds of stuff on it to see if it had any flaws/errors. Zero !!! and I love it as much as my original. One minor annoyance; when I hit prefix to see all digits, it just flashes the digits too fast for me to read. My old HP showed it as long as I held the button. But still a 5+++ Thanks for the exceptional re-creation. -- gorilla slick, 2023-08-27 ### ****- "Just downloaded app. So far, so good." I still have, and occasionally use, the HP11C I bought in 1986. I’m very glad to have this app on my iPhone 12 with iOS 16.1.1. The “click” on every keystroke is a good substitute for the old HP11C “feel”. -- Stair Designer, 2023-01-30 ### ***** "I Like It" I purchased my first 11C probably around 1976 or so on the recommendation of my engineering student brother who explained the advantages of RPN to me. The transition was easy since I was not a calculator user prior to its acquisition. I have three now, one at home, work, and on my boat. I have been a machinist for 35 years so the one at work sees the lions share of use. I am absolutely thrilled to now have it on my phone so I have instant access to it 24/7 regardless of my location. The majority of my use is simple number crunching and trig functions so I could not be considered a power user or expert on it but I am absolutely happy and satisfied with this app on my phone. Now when at work if I am standing in front of a machine tool and want to add or subtract two numbers I whip out my phone rather than walk the 30 or 40 feet to my office and back. I am highly protective of my beloved 11C so it rarely makes an appearance on the shop floor for fear of being damaged or destroyed. -- Dangit Eric, 2022-08-28 ### ***** "Phenomenal Calculator!" Easy to use if one if familiar with RPN or HP Calculators! A must have! -- chipscan, 2022-06-13 ### ****- "Manual Access Is Corrupt" Great except that the manual does not work. You only get the first few pages. The others do not appear. -- Barking Dog On a Bisket, 2022-05-31 ### ***** "Wonderful RPN format calculator" This calculator works well on my iPhone. The RPN format is great and I use it in my laboratory and at home. -- cearlj, 2021-12-24 ### ***** "HP 11C" Great product. Works just like my old HP. thanks for sharing it. There have been many times that it has been very handy. Thanks -- asdfthanks, 2021-11-01 ### ***** "Hp11c great engr Calc" I Have used the HP 11 C calculator since I was in college. I really enjoy simplicity and accuracy. This iPhone version excellent seems to be same as my calculator and always available because it’s an app. I love it and use it a lot! -- Generalcondition, 2021-10-11 ### ***** "Love it, lovage a part of my brain" Got my HP-11C in 1984. Immediate hooked into my brain, Matrix-wise. I just kinda naturally think in Reverse Polish anyway. It lasted thirty freaking years! This app gets the closest to the HP-11C’s look & feel of any I’ve seen. -- LucyElectrix, 2021-06-19 ### ****- "Stopped working in iOS 13. Working again :-)" Like the app. Used it a lot. No longer works after updating to iOS 13.2.3 Update: tried launching again in iOS 14.x and it’s working again. Happy again! -- rharcha, 2021-02-19 ### ***** "Bill - Engineering Tech." I bought the calculator first when they came out in the 1980’s(??) and still use it in my work. Then I downloaded the app and it is equally great. With an IOS upgrade, it stopped working for a little while until it was updated to the newer IOS. I recommend it to those who are scientifically minded and like RPN. -- Eng Tech, 2021-01-14 ### ***** "HP 11C" Reverse Polish calculators are the best. -- Caiprivodka, 2020-12-17 ### ***** "Old school cool" Love it, simulates my real HP perfectly. Long live RPN! -- B&Hboy, 2020-12-14 ### ***** "The Way Nature Intended" Since I bought my first HP-11C in 1985 and exposed to RPN I never looked back. I have never found a better calculator. Period. Stop. Now that I have it in my phone, I’m complete...no more hacking at some poor excuse for a calculator! -- Zebroudour, 2020-10-24 ### ***** "Best calculator and app" I have loved my (real) HP11C for almost 40 years. This app re-creates it perfectly. -- Holden97, 2020-09-03 ### ***** "Is great, can you include the Mexican market?" I used the 11C calculator when in the university. I loved it. For several months stop working after an update and after several updates later it work again. I like it very much. I’ve recommended it to all my fellow students in Mexico but they can’t find this exact app, there are alternatives but you guys, don’t appear. Could you make it available for the Mexican or Latin American market? -- Eldir65, 2020-07-08 [View all 11C Scientific Calculator reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews) ## 11C Scientific Calculator Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Paid | Brazil | Utilities | #160 | | Top Paid | Switzerland | Utilities | #245 | | Top Paid | Belgium | Utilities | #254 | | Top Paid | South Africa | Utilities | #264 | | Top Paid | Austria | Utilities | #290 | | Top Paid | Spain | Utilities | #304 | | Top Paid | Chile | Utilities | #332 | | Top Paid | Mexico | Utilities | #340 | | Top Paid | France | Utilities | #351 | | Top Paid | Denmark | Utilities | #393 | | Top Paid | Peru | Utilities | #423 | | Top Paid | Norway | Utilities | #426 | | Top Paid | Colombia | Utilities | #429 | | Top Paid | New Zealand | Utilities | #439 | | Top Paid | Lebanon | Utilities | #446 | | Top Paid | Sweden | Utilities | #482 | ## 11C Scientific Calculator Discovered Keywords - 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[Germany](https://apptail.io/app/11c-scientific-calculator-BzWb/germany) - [France](https://apptail.io/app/11c-scientific-calculator-BzWb/france) - [Brazil](https://apptail.io/app/11c-scientific-calculator-BzWb/brazil) - [Netherlands](https://apptail.io/app/11c-scientific-calculator-BzWb/netherlands) - [Australia](https://apptail.io/app/11c-scientific-calculator-BzWb/australia) - [Canada](https://apptail.io/app/11c-scientific-calculator-BzWb/canada) - [South Africa](https://apptail.io/app/11c-scientific-calculator-BzWb/south-africa) - [New Zealand](https://apptail.io/app/11c-scientific-calculator-BzWb/new-zealand) - [Japan](https://apptail.io/app/11c-scientific-calculator-BzWb/japan) - [Sweden](https://apptail.io/app/11c-scientific-calculator-BzWb/sweden) - [United Kingdom](https://apptail.io/app/11c-scientific-calculator-BzWb/united-kingdom) - [Austria](https://apptail.io/app/11c-scientific-calculator-BzWb/austria) - [Norway](https://apptail.io/app/11c-scientific-calculator-BzWb/norway) - [Belgium](https://apptail.io/app/11c-scientific-calculator-BzWb/belgium) - [Mexico](https://apptail.io/app/11c-scientific-calculator-BzWb/mexico) - [Spain](https://apptail.io/app/11c-scientific-calculator-BzWb/spain) - [Denmark](https://apptail.io/app/11c-scientific-calculator-BzWb/denmark) - [Greece](https://apptail.io/app/11c-scientific-calculator-BzWb/greece) - [Chile](https://apptail.io/app/11c-scientific-calculator-BzWb/chile) - [Italy](https://apptail.io/app/11c-scientific-calculator-BzWb/italy) - [Argentina](https://apptail.io/app/11c-scientific-calculator-BzWb/argentina) - [South Korea](https://apptail.io/app/11c-scientific-calculator-BzWb/south-korea) - [Türkiye](https://apptail.io/app/11c-scientific-calculator-BzWb/turkey) - [Ireland](https://apptail.io/app/11c-scientific-calculator-BzWb/ireland) - [Colombia](https://apptail.io/app/11c-scientific-calculator-BzWb/colombia) - [Finland](https://apptail.io/app/11c-scientific-calculator-BzWb/finland) - [China](https://apptail.io/app/11c-scientific-calculator-BzWb/china) - [Israel](https://apptail.io/app/11c-scientific-calculator-BzWb/israel) - [Hong Kong SAR China](https://apptail.io/app/11c-scientific-calculator-BzWb/hong-kong) - [Thailand](https://apptail.io/app/11c-scientific-calculator-BzWb/thailand) - [Portugal](https://apptail.io/app/11c-scientific-calculator-BzWb/portugal) - [Paraguay](https://apptail.io/app/11c-scientific-calculator-BzWb/paraguay) - [Romania](https://apptail.io/app/11c-scientific-calculator-BzWb/romania) - [Russia](https://apptail.io/app/11c-scientific-calculator-BzWb/russia) - [Saudi Arabia](https://apptail.io/app/11c-scientific-calculator-BzWb/saudi-arabia) - [Singapore](https://apptail.io/app/11c-scientific-calculator-BzWb/singapore) - [Slovenia](https://apptail.io/app/11c-scientific-calculator-BzWb/slovenia) - [United Arab Emirates](https://apptail.io/app/11c-scientific-calculator-BzWb/united-arab-emirates) - [Tunisia](https://apptail.io/app/11c-scientific-calculator-BzWb/tunisia) - [Taiwan](https://apptail.io/app/11c-scientific-calculator-BzWb/taiwan) - [Ukraine](https://apptail.io/app/11c-scientific-calculator-BzWb/ukraine) - [Uzbekistan](https://apptail.io/app/11c-scientific-calculator-BzWb/uzbekistan) - [Vietnam](https://apptail.io/app/11c-scientific-calculator-BzWb/vietnam) - [Slovakia](https://apptail.io/app/11c-scientific-calculator-BzWb/slovakia) - [Azerbaijan](https://apptail.io/app/11c-scientific-calculator-BzWb/azerbaijan) - [Bahrain](https://apptail.io/app/11c-scientific-calculator-BzWb/bahrain) - [Brunei](https://apptail.io/app/11c-scientific-calculator-BzWb/brunei) - [Belarus](https://apptail.io/app/11c-scientific-calculator-BzWb/belarus) - [Cyprus](https://apptail.io/app/11c-scientific-calculator-BzWb/cyprus) - [Czechia](https://apptail.io/app/11c-scientific-calculator-BzWb/czechia) - [Dominican Republic](https://apptail.io/app/11c-scientific-calculator-BzWb/dominican-republic) - [Algeria](https://apptail.io/app/11c-scientific-calculator-BzWb/algeria) - [Ecuador](https://apptail.io/app/11c-scientific-calculator-BzWb/ecuador) - [Estonia](https://apptail.io/app/11c-scientific-calculator-BzWb/estonia) - [Egypt](https://apptail.io/app/11c-scientific-calculator-BzWb/egypt) - [Honduras](https://apptail.io/app/11c-scientific-calculator-BzWb/honduras) - [Croatia](https://apptail.io/app/11c-scientific-calculator-BzWb/croatia) - [Hungary](https://apptail.io/app/11c-scientific-calculator-BzWb/hungary) - [Indonesia](https://apptail.io/app/11c-scientific-calculator-BzWb/indonesia) - [India](https://apptail.io/app/11c-scientific-calculator-BzWb/india) - [Iceland](https://apptail.io/app/11c-scientific-calculator-BzWb/iceland) - [Kuwait](https://apptail.io/app/11c-scientific-calculator-BzWb/kuwait) - [Kazakhstan](https://apptail.io/app/11c-scientific-calculator-BzWb/kazakhstan) - [Lebanon](https://apptail.io/app/11c-scientific-calculator-BzWb/lebanon) - [Sri Lanka](https://apptail.io/app/11c-scientific-calculator-BzWb/sri-lanka) - [Latvia](https://apptail.io/app/11c-scientific-calculator-BzWb/latvia) - [Madagascar](https://apptail.io/app/11c-scientific-calculator-BzWb/madagascar) - [North Macedonia](https://apptail.io/app/11c-scientific-calculator-BzWb/north-macedonia) - [Malaysia](https://apptail.io/app/11c-scientific-calculator-BzWb/malaysia) - [Nigeria](https://apptail.io/app/11c-scientific-calculator-BzWb/nigeria) - [Nepal](https://apptail.io/app/11c-scientific-calculator-BzWb/nepal) - [Peru](https://apptail.io/app/11c-scientific-calculator-BzWb/peru) - [Philippines](https://apptail.io/app/11c-scientific-calculator-BzWb/philippines) - [Pakistan](https://apptail.io/app/11c-scientific-calculator-BzWb/pakistan) - [Poland](https://apptail.io/app/11c-scientific-calculator-BzWb/poland) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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